Theoretical Models of Neutrino Masses and Mixings

Abstract

We review theoretical ideas, problems and implications of different models for neutrino masses and mixing angles. We give a general discussion of schemes with three or more light neutrinos. Several specific examples are analyzed in some detail, particularly those that can be embedded into grand unified theories.

Comments: 38 pages, 1 figure, to appear in ``Neutrino Mass'', Springer Tracts in Modern Physics, ed. by G. Altarelli and K. Winter